<div class="doc-item" id="doc-587"><h2 class="doc-item-name">ancestors<span class="namespace">(clojure.core)</span></h2><ul class="var-arglists"><li>(<span class="var-name">ancestors</span>  tag)</li><li>(<span class="var-name">ancestors</span> h tag)</li></ul><div class="var-docstring"><p>Returns the immediate and indirect parents of tag, either via a Java type
  inheritance relationship or a relationship established via derive. h
  must be a hierarchy obtained from make-hierarchy, if not supplied
  defaults to the global hierarchy</p></div><div class="var-source"><pre>; clojure/core.clj:3311
(defn ancestors
  ([tag] (ancestors global-hierarchy tag))
  ([h tag] (not-empty
            (let [ta (get (:ancestors h) tag)]
              (if (class? tag)
                (let [superclasses (set (supers tag))]
                  (reduce into superclasses
                    (cons ta
                          (map #(get (:ancestors h) %) superclasses))))
                ta)))))</pre></div><div class="license"><p>Copyright (c) Rich Hickey. All rights reserved.</p><p>The use and distribution terms for this software are covered by the <a href="http://opensource.org/licenses/eclipse-1.0.php">Eclipse Public License 1.0</a>, which can be found in the file
          epl-v10.html at the root of this distribution. By using this software
          in any fashion, you are agreeing to be bound by the terms of this
          license. You must not remove this notice, or any other, from this
          software.</p></div></div>